PAPILLAE and SENSE OF TASTE – PATHWAY

Vallate papillae

about 12 that contain 100–300 taste buds

Fungiform papilla

scattered over the tongue with about 5 taste buds each

 Foliate papilla

located in lateral trenches of the tongue—most of their taste buds degenerate in early childhood

Filiform papillae

• cover the entire surface of the tongue and contain tactile receptors but no taste buds. 

  
  

Tastant

dissolved in the saliva and enter taste pores

neurotransmitter molecules

Release of _________ from gustatory receptor cell first order neuron gustatory receptors in taste buds

Facial (VII), glossopharyngeal (IX), and vagus (X)

Which cranial nerves are involved in taste sensation?

medulla oblongata, limbic system, hypothalamus, thalamus, and the primary gustatory area

• Impulses for taste conduct to the __________________________ in the parietal lobe of the cerebral cortex